Effect of nanocelluloses on the microstructure and mechanical performance of CAC cementitious matrices
This paper analyses the influence of the addition of low content (0.1 to 0.8 wt%) of nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC) on the flexural performance, durability and microstructure of calcium aluminate cement (CAC) cured at 20 °C or 60 °C. The relationship between the mech...
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| Veröffentlicht in: | Cement and concrete research 2019-05, Vol.119, p.64-76 |
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| creator | Claramunt, Josep Ventura, Heura Toledo Filho, Romildo D. Ardanuy, Mònica |
| description | This paper analyses the influence of the addition of low content (0.1 to 0.8 wt%) of nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC) on the flexural performance, durability and microstructure of calcium aluminate cement (CAC) cured at 20 °C or 60 °C. The relationship between the mechanical properties and the microstructure of the cement was evaluated after curing and further after accelerated aging by flexural testing and X-ray diffraction and by backscattered electron imaging, respectively. The addition of 0.1–0.2 wt% of either nanocellulose led to an increase in the modulus of rupture (MOR) and modulus of elasticity (MOE) values. Moreover, CNC was effective to counteract the negative effects of increased porosity of CAC cements before and after aging, significantly improving their mechanical performance and durability. This effect was not observed in Portland cement systems, in which the addition of this low nanocellulose content did not lead to significant changes. |
| doi_str_mv | 10.1016/j.cemconres.2019.02.006 |
| format | Article |
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The relationship between the mechanical properties and the microstructure of the cement was evaluated after curing and further after accelerated aging by flexural testing and X-ray diffraction and by backscattered electron imaging, respectively. The addition of 0.1–0.2 wt% of either nanocellulose led to an increase in the modulus of rupture (MOR) and modulus of elasticity (MOE) values. Moreover, CNC was effective to counteract the negative effects of increased porosity of CAC cements before and after aging, significantly improving their mechanical performance and durability. This effect was not observed in Portland cement systems, in which the addition of this low nanocellulose content did not lead to significant changes.</description><identifier>ISSN: 0008-8846</identifier><identifier>EISSN: 1873-3948</identifier><identifier>DOI: 10.1016/j.cemconres.2019.02.006</identifier><language>eng</language><publisher>Elmsford: Elsevier Ltd</publisher><subject>Accelerated aging tests ; Accelerated tests ; Aluminous cements ; Backscattering ; C. Durability ; C. Mechanical properties ; Calcium aluminate ; Cellulose ; Cement ; Ciment ; D. Calcium aluminate cement ; Durability ; durability and microstructure of calcium aluminate cement (CAC) cured at 20 ºC or 60 ºC ; E. Composite ; Electron imaging ; Enginyeria dels materials ; Mechanical properties ; Microstructure ; Modulus of elasticity ; Modulus of rupture ; Nanocellullose ; Nanocrystals ; Other: Nanocellulose ; Porosity ; Portland cements ; This paper analyses the influence of the addition of low content (0.1 to 0.8 wt.%) of nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC) on the flexural performance ; X-ray diffraction ; Àrees temàtiques de la UPC</subject><ispartof>Cement and concrete research, 2019-05, Vol.119, p.64-76</ispartof><rights>2019 Elsevier Ltd</rights><rights>Copyright Elsevier BV May 2019</rights><rights>Attribution-NonCommercial-NoDerivs 3.0 Spain info:eu-repo/semantics/openAccess <a href="http://creativecommons.org/licenses/by-nc-nd/3.0/es/">http://creativecommons.org/licenses/by-nc-nd/3.0/es/</a></rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c434t-8cc6118bbcb2172a7957668b4e23e520d29728e486d6558c48e2496b7facefed3</citedby><cites>FETCH-LOGICAL-c434t-8cc6118bbcb2172a7957668b4e23e520d29728e486d6558c48e2496b7facefed3</cites><orcidid>0000-0002-9809-2577</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0008884618311372$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,26951,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Claramunt, Josep</creatorcontrib><creatorcontrib>Ventura, Heura</creatorcontrib><creatorcontrib>Toledo Filho, Romildo D.</creatorcontrib><creatorcontrib>Ardanuy, Mònica</creatorcontrib><title>Effect of nanocelluloses on the microstructure and mechanical performance of CAC cementitious matrices</title><title>Cement and concrete research</title><description>This paper analyses the influence of the addition of low content (0.1 to 0.8 wt%) of nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC) on the flexural performance, durability and microstructure of calcium aluminate cement (CAC) cured at 20 °C or 60 °C. The relationship between the mechanical properties and the microstructure of the cement was evaluated after curing and further after accelerated aging by flexural testing and X-ray diffraction and by backscattered electron imaging, respectively. The addition of 0.1–0.2 wt% of either nanocellulose led to an increase in the modulus of rupture (MOR) and modulus of elasticity (MOE) values. Moreover, CNC was effective to counteract the negative effects of increased porosity of CAC cements before and after aging, significantly improving their mechanical performance and durability. This effect was not observed in Portland cement systems, in which the addition of this low nanocellulose content did not lead to significant changes.</description><subject>Accelerated aging tests</subject><subject>Accelerated tests</subject><subject>Aluminous cements</subject><subject>Backscattering</subject><subject>C. Durability</subject><subject>C. Mechanical properties</subject><subject>Calcium aluminate</subject><subject>Cellulose</subject><subject>Cement</subject><subject>Ciment</subject><subject>D. Calcium aluminate cement</subject><subject>Durability</subject><subject>durability and microstructure of calcium aluminate cement (CAC) cured at 20 ºC or 60 ºC</subject><subject>E. Composite</subject><subject>Electron imaging</subject><subject>Enginyeria dels materials</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Modulus of elasticity</subject><subject>Modulus of rupture</subject><subject>Nanocellullose</subject><subject>Nanocrystals</subject><subject>Other: Nanocellulose</subject><subject>Porosity</subject><subject>Portland cements</subject><subject>This paper analyses the influence of the addition of low content (0.1 to 0.8 wt.%) of nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC) on the flexural performance</subject><subject>X-ray diffraction</subject><subject>Àrees temàtiques de la UPC</subject><issn>0008-8846</issn><issn>1873-3948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>XX2</sourceid><recordid>eNqFUcFq3DAUFKWBbpN-QwU925FkWZaPy5KkhUAuyVnIz09Eiy1tJbnQv4-WDemxh8dj4M0wb4aQ75y1nHF1e2wBV4ghYW4F42PLRMuY-kR2XA9d041SfyY7xphutJbqC_ma87FCJTq9I-7OOYRCo6PBhgi4LNsSM2YaAy2vSFcPKeaSNihbQmrDTFeEVxs82IWeMLmYVhsAzxKH_YFWNxiKLz5uma62JA-Yb8iVs0vGb-_7mrzc3z0ffjaPTw-_DvvHBmQnS6MBFOd6mmASfBB2GPtBKT1JFB32gs1iHIRGqdWs-l6D1CjkqKbBWUCHc3dN-EUX8gYmIWACW0y0_h84j2CDMF3Pxr6vnB8XzinF3xvmYo5xS6HaNEJwJZQWnaxXw7tyjSMndOaU_GrTX8OZORdhjuajCHMuwjBhasyVub8wsT7-x2MyGTzWxGZfPRUzR_9fjTemhJb-</recordid><startdate>20190501</startdate><enddate>20190501</enddate><creator>Claramunt, Josep</creator><creator>Ventura, Heura</creator><creator>Toledo Filho, Romildo D.</creator><creator>Ardanuy, Mònica</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>XX2</scope><orcidid>https://orcid.org/0000-0002-9809-2577</orcidid></search><sort><creationdate>20190501</creationdate><title>Effect of nanocelluloses on the microstructure and mechanical performance of CAC cementitious matrices</title><author>Claramunt, Josep ; Ventura, Heura ; Toledo Filho, Romildo D. ; Ardanuy, Mònica</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c434t-8cc6118bbcb2172a7957668b4e23e520d29728e486d6558c48e2496b7facefed3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Accelerated aging tests</topic><topic>Accelerated tests</topic><topic>Aluminous cements</topic><topic>Backscattering</topic><topic>C. Durability</topic><topic>C. Mechanical properties</topic><topic>Calcium aluminate</topic><topic>Cellulose</topic><topic>Cement</topic><topic>Ciment</topic><topic>D. Calcium aluminate cement</topic><topic>Durability</topic><topic>durability and microstructure of calcium aluminate cement (CAC) cured at 20 ºC or 60 ºC</topic><topic>E. Composite</topic><topic>Electron imaging</topic><topic>Enginyeria dels materials</topic><topic>Mechanical properties</topic><topic>Microstructure</topic><topic>Modulus of elasticity</topic><topic>Modulus of rupture</topic><topic>Nanocellullose</topic><topic>Nanocrystals</topic><topic>Other: Nanocellulose</topic><topic>Porosity</topic><topic>Portland cements</topic><topic>This paper analyses the influence of the addition of low content (0.1 to 0.8 wt.%) of nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC) on the flexural performance</topic><topic>X-ray diffraction</topic><topic>Àrees temàtiques de la UPC</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Claramunt, Josep</creatorcontrib><creatorcontrib>Ventura, Heura</creatorcontrib><creatorcontrib>Toledo Filho, Romildo D.</creatorcontrib><creatorcontrib>Ardanuy, Mònica</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Recercat</collection><jtitle>Cement and concrete research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Claramunt, Josep</au><au>Ventura, Heura</au><au>Toledo Filho, Romildo D.</au><au>Ardanuy, Mònica</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of nanocelluloses on the microstructure and mechanical performance of CAC cementitious matrices</atitle><jtitle>Cement and concrete research</jtitle><date>2019-05-01</date><risdate>2019</risdate><volume>119</volume><spage>64</spage><epage>76</epage><pages>64-76</pages><issn>0008-8846</issn><eissn>1873-3948</eissn><abstract>This paper analyses the influence of the addition of low content (0.1 to 0.8 wt%) of nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC) on the flexural performance, durability and microstructure of calcium aluminate cement (CAC) cured at 20 °C or 60 °C. The relationship between the mechanical properties and the microstructure of the cement was evaluated after curing and further after accelerated aging by flexural testing and X-ray diffraction and by backscattered electron imaging, respectively. The addition of 0.1–0.2 wt% of either nanocellulose led to an increase in the modulus of rupture (MOR) and modulus of elasticity (MOE) values. Moreover, CNC was effective to counteract the negative effects of increased porosity of CAC cements before and after aging, significantly improving their mechanical performance and durability. This effect was not observed in Portland cement systems, in which the addition of this low nanocellulose content did not lead to significant changes.</abstract><cop>Elmsford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.cemconres.2019.02.006</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0002-9809-2577</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Accelerated aging tests Accelerated tests Aluminous cements Backscattering C. Durability C. Mechanical properties Calcium aluminate Cellulose Cement Ciment D. Calcium aluminate cement Durability durability and microstructure of calcium aluminate cement (CAC) cured at 20 ºC or 60 ºC E. Composite Electron imaging Enginyeria dels materials Mechanical properties Microstructure Modulus of elasticity Modulus of rupture Nanocellullose Nanocrystals Other: Nanocellulose Porosity Portland cements This paper analyses the influence of the addition of low content (0.1 to 0.8 wt.%) of nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC) on the flexural performance X-ray diffraction Àrees temàtiques de la UPC |
| title | Effect of nanocelluloses on the microstructure and mechanical performance of CAC cementitious matrices |
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